editoast: get paced train path endpont

editoast/openapi.yaml

@@ -5142,6 +5142,7 @@ components:
       - $ref: '#/components/schemas/EditoastOperationErrorObjectNotFound'
       - $ref: '#/components/schemas/EditoastPacedTrainErrorBatchPacedTrainNotFound'
       - $ref: '#/components/schemas/EditoastPacedTrainErrorDatabase'
+      - $ref: '#/components/schemas/EditoastPacedTrainErrorInfraNotFound'
       - $ref: '#/components/schemas/EditoastPacedTrainErrorPacedTrainNotFound'
       - $ref: '#/components/schemas/EditoastPaginationErrorInvalidPage'
       - $ref: '#/components/schemas/EditoastPaginationErrorInvalidPageSize'
@@ -5680,6 +5681,30 @@ components:
           type: string
           enum:
           - editoast:paced_train:Database
+    EditoastPacedTrainErrorInfraNotFound:
+      type: object
+      required:
+      - type
+      - status
+      - message
+      properties:
+        context:
+          type: object
+          required:
+          - infra_id
+          properties:
+            infra_id:
+              type: integer
+        message:
+          type: string
+        status:
+          type: integer
+          enum:
+          - 404
+        type:
+          type: string
+          enum:
+          - editoast:paced_train:InfraNotFound
     EditoastPacedTrainErrorPacedTrainNotFound:
       type: object
       required:

editoast/src/models/paced_train.rs

@@ -13,9 +13,9 @@ use editoast_schemas::train_schedule::ScheduleItem;
 use editoast_schemas::train_schedule::TrainScheduleBase;
 use editoast_schemas::train_schedule::TrainScheduleOptions;
 
-use crate::models::prelude::*;
-
+use super::train_schedule::TrainSchedule;
 use super::Tags;
+use crate::models::prelude::*;
 
 #[derive(Debug, Clone, Model)]
 #[model(table = editoast_models::tables::paced_train)]
@@ -101,3 +101,25 @@ impl From<PacedTrain> for PacedTrainBase {
         }
     }
 }
+
+impl From<PacedTrain> for TrainSchedule {
+    fn from(paced_train: PacedTrain) -> Self {
+        Self {
+            id: paced_train.id,
+            train_name: paced_train.train_name,
+            labels: paced_train.labels.into(),
+            rolling_stock_name: paced_train.rolling_stock_name,
+            timetable_id: paced_train.timetable_id,
+            path: paced_train.path,
+            start_time: paced_train.start_time,
+            schedule: paced_train.schedule,
+            margins: paced_train.margins,
+            initial_speed: paced_train.initial_speed,
+            comfort: paced_train.comfort,
+            constraint_distribution: paced_train.constraint_distribution,
+            speed_limit_tag: paced_train.speed_limit_tag,
+            power_restrictions: paced_train.power_restrictions,
+            options: paced_train.options,
+        }
+    }
+}

editoast/src/views/paced_train.rs

@@ -17,6 +17,7 @@ use thiserror::Error;
 use utoipa::IntoParams;
 use utoipa::ToSchema;
 
+use super::path::pathfinding::pathfinding_from_train;
 use super::path::pathfinding::PathfindingResult;
 use super::projection::ProjectPathForm;
 use super::AppState;
@@ -27,6 +28,7 @@ use crate::core::simulation::SimulationResponse;
 use crate::error::Result;
 use crate::models::paced_train::PacedTrain;
 use crate::models::prelude::*;
+use crate::models::Infra;
 use crate::views::projection::ProjectPathTrainResult;
 use crate::views::AuthorizationError;
 use crate::views::ListId;
@@ -60,6 +62,9 @@ enum PacedTrainError {
     #[editoast_error(status = 404)]
     #[error("Paced train {paced_train_id} does not exist")]
     PacedTrainNotFound { paced_train_id: i64 },
+    #[error("Infra '{infra_id}', could not be found")]
+    #[editoast_error(status = 404)]
+    InfraNotFound { infra_id: i64 },
     #[error(transparent)]
     #[editoast_error(status = 500)]
     Database(#[from] editoast_models::model::Error),
@@ -229,20 +234,36 @@ async fn simulation_summary(
 )]
 async fn get_path(
     State(AppState {
-        db_pool: _db_pool,
-        valkey: _valkey_client,
-        core_client: _core,
+        db_pool,
+        valkey: valkey_client,
+        core_client: core,
         ..
     }): State<AppState>,
-    Extension(_auth): AuthenticationExt,
-    Path(PacedTrainIdParam {
-        id: _paced_train_id,
-    }): Path<PacedTrainIdParam>,
-    Query(InfraIdQueryParam {
-        infra_id: _infra_id,
-    }): Query<InfraIdQueryParam>,
+    Extension(auth): AuthenticationExt,
+    Path(PacedTrainIdParam { id: paced_train_id }): Path<PacedTrainIdParam>,
+    Query(InfraIdQueryParam { infra_id }): Query<InfraIdQueryParam>,
 ) -> Result<Json<PathfindingResult>> {
-    todo!();
+    let authorized = auth
+        .check_roles([BuiltinRole::OperationalStudies, BuiltinRole::Stdcm].into())
+        .await
+        .map_err(AuthorizationError::AuthError)?;
+    if !authorized {
+        return Err(AuthorizationError::Forbidden.into());
+    }
+    let conn = &mut db_pool.get().await?;
+    let mut valkey_conn = valkey_client.get_connection().await?;
+
+    let infra = Infra::retrieve_or_fail(conn, infra_id, || PacedTrainError::InfraNotFound {
+        infra_id,
+    })
+    .await?;
+    let paced_train = PacedTrain::retrieve_or_fail(conn, paced_train_id, || {
+        PacedTrainError::PacedTrainNotFound { paced_train_id }
+    })
+    .await?;
+    Ok(Json(
+        pathfinding_from_train(conn, &mut valkey_conn, core, &infra, paced_train.into()).await?,
+    ))
 }
 
 #[derive(Debug, Default, Clone, Serialize, Deserialize, IntoParams, ToSchema)]
@@ -316,17 +337,23 @@ async fn project_path(
 #[cfg(test)]
 mod tests {
     use axum::http::StatusCode;
+    use editoast_models::DbConnectionPoolV2;
     use pretty_assertions::assert_eq;
     use rstest::rstest;
     use serde_json::json;
 
+    use crate::core::mocking::MockingClient;
+    use crate::core::pathfinding::PathfindingResultSuccess;
     use crate::error::InternalError;
+    use crate::models::fixtures::create_fast_rolling_stock;
     use crate::models::fixtures::create_simple_paced_train;
+    use crate::models::fixtures::create_small_infra;
     use crate::models::fixtures::create_timetable;
     use crate::models::fixtures::simple_paced_train_base;
     use crate::models::paced_train::PacedTrain;
     use crate::models::prelude::*;
     use crate::views::paced_train::PacedTrainResult;
+    use crate::views::path::pathfinding::PathfindingResult;
     use crate::views::test_app::TestAppBuilder;
 
     #[rstest]
@@ -406,4 +433,53 @@ mod tests {
         );
         assert_eq!(paced_train.step, response.paced_train.paced.step.into());
     }
+
+    #[rstest]
+    async fn get_paced_train_path() {
+        let db_pool = DbConnectionPoolV2::for_tests();
+        let mut core = MockingClient::new();
+        core.stub("/v2/pathfinding/blocks")
+            .method(reqwest::Method::POST)
+            .response(StatusCode::OK)
+            .json(json!({
+                "blocks":[],
+                "routes": [],
+                "track_section_ranges": [],
+                "path_item_positions": [],
+                "length": 1,
+                "status": "success"
+            }))
+            .finish();
+        let app = TestAppBuilder::new()
+            .db_pool(db_pool.clone())
+            .core_client(core.into())
+            .build();
+        let pool = app.db_pool();
+
+        create_fast_rolling_stock(&mut db_pool.get_ok(), "R2D2").await;
+        let timetable = create_timetable(&mut pool.get_ok()).await;
+        let paced_train = create_simple_paced_train(&mut pool.get_ok(), timetable.id).await;
+        let small_infra = create_small_infra(&mut db_pool.get_ok()).await;
+
+        let request = app.get(&format!(
+            "/paced_train/{}/path?infra_id={}",
+            paced_train.id, small_infra.id
+        ));
+
+        let response = app
+            .fetch(request)
+            .assert_status(StatusCode::OK)
+            .json_into::<PathfindingResult>();
+
+        assert_eq!(
+            response,
+            PathfindingResult::Success(PathfindingResultSuccess {
+                blocks: vec![],
+                routes: vec![],
+                track_section_ranges: vec![],
+                path_item_positions: vec![],
+                length: 1
+            })
+        )
+    }
 }